Kim Kardashian Baby Got Front ... & Back!

2/21/2012 8:05 AM PST

Kim Kardashian -- Baby Got Front ... & Back!

It's hard to tell what's hotter: Kim Kardashian's ridiculous curves from the front or her bootyful bod from the back.

With her purple bikini stretched to the limit in Miami this weekend, Kim -- along with her good pal Jonathan Cheban at her side -- made sure all her smokin' hot lady parts were ready for their close-up.